Word Problems
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Sex ratio is defined as the number of females per 1000 males in the population. Find the sex ratio, if there are 3732 females per 4000 males in a town.
Question 2(e) :
Solve:
1215−715
A started a business with $Rs$.$2,70,000$and was joined by B three months afterward. How much money did B invest if the profit share of A at the end of the year was threefifth of the total profit?
Find 15% of 250.
The ratio of income to savings of a family 11:2 find the expenditure if the saving is Rs. 1520.
Convert each part of the ratio to percentage: $3:1$.
How to divide 75 dhs in the ratio 2:3 between A and B? ( step by step )
What fraction of a day is $8$ hours?
How many $\mathrm{minutes}$are there in a $\mathrm{week}$?
Question 4
Thirty women were examined in a hospital by a doctor and the number of heart beats per minute were recorded and summarized as follows. Find the mean heart beats per minute for these women, choosing a suitable method.
Number of heart beats per minute65−6868−7171−7474−7777−8080−8383−86Number of women2438742
The angles of triangle are in the ratio $3:4:5$. Find the angles of triangle.
13 out of 20
The price of commodity x increase by 40 paisa every year , while the price of commodity y increase by 15 paisa every year . If in 2001, the price of x was RS 4.20 and that of y was RS 6.30 in which year commodity x will cost 40 paisa more than the commodity y .
Express $25\mathrm{m}/\mathrm{s}$ In kmph?
$15\mathrm{Kmph}$
$99\mathrm{Kmph}$
$90\mathrm{Kmph}$
None
Write two prime numbers whose difference is$10$.
 5:26

21:5

5:21

1:26
Ravi and Rani started a business and invested money in the ratio 2 : 3. After one year the total profit was Rs 40, 000. What are the shares of Ravi and Rani in the profit? [4 MARKS]
Find $1\%$ of $1$ hour.
Consider the following distribution of daily wages of 50 workers of a factory.
Daily wages (in Rs)100−120120−140140−160160−180180−200Number of workers12148610
Find the mean daily wages of the workers of the factory by using an appropriate method.
Divide Rs. 60 in the ratio 1:2 between a and b.
Find
$25\%$ of $400$
4.5gram of alloy of coppor and zinc contains 3.5gram of coppor what weight of coppor will be there in18.9 of alloy
2 men and 7 women can do a piece of work in 4 days, while 4 men and 4 women can do the same work in 3 days . How many would it take one men and one women to do it ?
Rafiq exercised for $\frac{3}{6}$ of an hour, while Rohit exercised for $\frac{3}{4}$ of an hour. Who exercised for a longer time?
Is lead heavier than steel?
In a test, (+5) marks are given for every correct answer and (2) marks are given for every incorrect answer.
i. Radhika answered all the questions, scored 30 marks and got 10 correct answers
ii. Jay also answered all the questions, scored (12) marks though he got 4 correct answers.
How many incorrect answers they attempted together?
24
22
28
26
If 12 litre diesel is consumed by a car in covering a distance of 222 km, how many ′km′ will it go in 22 litre of diesel.
Question 79 (i)
Solve: 294−307
The total cost of flooring a rectangular room at Rs. 8.50 per sq. metre is Rs. 510. If the length of the room is 8 m, what is the breadth?
6.7 cm
7.5 m
5.7 cm
7.6 m